My Revison Resource
Portable and Peripheral Devices
With an Ipad you can access the internet and download certain applications.
A laptop is a light portable version of a computer desktop.
PDA (Personal Digital Assistant)
A PDA allows you to look at your emails and it has a calender with reminders and memos
A peripheral device is called either an input or an output. A computer device, such as a CD-ROM drive or printer, that is not part of the essential computer, i.e., the memory and microprocessor. Peripheral devices can be external -- such as a mouse, keyboard, printer, monitor, external Zip drive or scanner or internal, such as a CD-ROM drive or CD-R drive.
Internal extras are inputs and external extras are outputs.
The key difference between optical storage media, such as CDs and DVDs, and magnetic storage media, such as hard drives and old-fashioned floppy disks, is in how computers read and write information to them. One uses light; the other, electromagnetism.
Magnetic storage uses disks coated with a magnetic material. Each tiny bit of the disk carries a magnetic charge; the direction of that charge determines what code or number it is.
Solid state storage is a type of computer storage media that is made from silicon microchips. Solid state storage stores data electronically instead of magnetically, as spinning hard disk drives or magnetic oxide tape do.
Solid-state storage can be found in three form factors: solid state drives (SSD), solid state cards (SSC), solid state modules (SSM). An important advantage of solid-state storage is the fact that it contains no mechanical parts, allowing data transfer to and from storage media to take place at a much higher speed and providing a more predictable lifespan for the storage media.